More often than not, authorization is given only in respect of explosives used for development projects, such as dynamite and nitrate, which are used in the excavation of roads and mountains and the construction of bridges.
La mayor parte de las veces, no se autorizan sino aquellas sustancias explosivas que contribuyen al desarrollo, como la dinamita, el nitrato, y los materiales que se utilizan para abrir carreteras, demoler montañas y tender puentes.